US4342587A - Herbicidal pyridinsulfonamides - Google Patents
Herbicidal pyridinsulfonamides Download PDFInfo
- Publication number
- US4342587A US4342587A US06/130,343 US13034380A US4342587A US 4342587 A US4342587 A US 4342587A US 13034380 A US13034380 A US 13034380A US 4342587 A US4342587 A US 4342587A
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- United States
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- och
- compounds
- grass
- emergence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000002363 herbicidal effect Effects 0.000 title description 6
- DWJMBQYORXLGAE-UHFFFAOYSA-N pyridine-2-sulfonamide Chemical class NS(=O)(=O)C1=CC=CC=N1 DWJMBQYORXLGAE-UHFFFAOYSA-N 0.000 title 1
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- RMJUTUUAUVXYCX-UHFFFAOYSA-N methyl 2-[(5-chloro-4-methylpyrimidin-2-yl)carbamoylsulfamoyl]benzoate Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC=C(Cl)C(C)=N1 RMJUTUUAUVXYCX-UHFFFAOYSA-N 0.000 description 1
- XSLLIJIWDIMZQT-UHFFFAOYSA-N methyl 2-[(5-ethyl-4,6-dimethylpyrimidin-2-yl)carbamoylsulfamoyl]benzoate Chemical compound N1=C(C)C(CC)=C(C)N=C1NC(=O)NS(=O)(=O)C1=CC=CC=C1C(=O)OC XSLLIJIWDIMZQT-UHFFFAOYSA-N 0.000 description 1
- QZELKTKYXKLTHL-UHFFFAOYSA-N methyl 2-[(5-ethyl-4-methylpyrimidin-2-yl)carbamoylsulfamoyl]benzoate Chemical compound N1=C(C)C(CC)=CN=C1NC(=O)NS(=O)(=O)C1=CC=CC=C1C(=O)OC QZELKTKYXKLTHL-UHFFFAOYSA-N 0.000 description 1
- XOOOOHMGURKNKE-UHFFFAOYSA-N methyl 2-[(5-fluoro-4,6-dimethoxypyrimidin-2-yl)carbamoylsulfamoyl]benzoate Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(OC)=C(F)C(OC)=N1 XOOOOHMGURKNKE-UHFFFAOYSA-N 0.000 description 1
- BACHBFVBHLGWSL-UHFFFAOYSA-N methyl 2-[4-(2,4-dichlorophenoxy)phenoxy]propanoate Chemical compound C1=CC(OC(C)C(=O)OC)=CC=C1OC1=CC=C(Cl)C=C1Cl BACHBFVBHLGWSL-UHFFFAOYSA-N 0.000 description 1
- CCTAFHMUPFCUDJ-UHFFFAOYSA-N methyl 2-[[4-chloro-5-(2-chloroethyl)-6-methylpyrimidin-2-yl]carbamoylsulfamoyl]benzoate Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=C(CCCl)C(Cl)=N1 CCTAFHMUPFCUDJ-UHFFFAOYSA-N 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- FOXFZRUHNHCZPX-UHFFFAOYSA-N metribuzin Chemical compound CSC1=NN=C(C(C)(C)C)C(=O)N1N FOXFZRUHNHCZPX-UHFFFAOYSA-N 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- JITOKQVGRJSHHA-UHFFFAOYSA-M monosodium methyl arsenate Chemical compound [Na+].C[As](O)([O-])=O JITOKQVGRJSHHA-UHFFFAOYSA-M 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- PKHGUYOYDUVANY-UHFFFAOYSA-N n,n-dimethyl-2-[(4,5,6-trimethylpyrimidin-2-yl)carbamoylsulfamoyl]benzamide Chemical compound CN(C)C(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=C(C)C(C)=N1 PKHGUYOYDUVANY-UHFFFAOYSA-N 0.000 description 1
- DODXZJLHTDSXCR-UHFFFAOYSA-N n-(oxomethylidene)pyridine-2-sulfonamide Chemical class O=C=NS(=O)(=O)C1=CC=CC=N1 DODXZJLHTDSXCR-UHFFFAOYSA-N 0.000 description 1
- IVWAKPREXADVIU-UHFFFAOYSA-N n-bromopyridine-2-sulfonamide Chemical compound BrNS(=O)(=O)C1=CC=CC=N1 IVWAKPREXADVIU-UHFFFAOYSA-N 0.000 description 1
- GUHSGHQVNSDCNV-UHFFFAOYSA-N n-dimethylalumanyl-n-methylmethanamine Chemical compound CN(C)[Al](C)C GUHSGHQVNSDCNV-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 235000020030 perry Nutrition 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- LWHFSHFRVOAIAT-UHFFFAOYSA-N propan-2-yl 2-isocyanatosulfonylbenzoate Chemical compound CC(C)OC(=O)C1=CC=CC=C1S(=O)(=O)N=C=O LWHFSHFRVOAIAT-UHFFFAOYSA-N 0.000 description 1
- UADGDKCDJALXDM-UHFFFAOYSA-N propan-2-yl 2-sulfamoylbenzoate Chemical compound CC(C)OC(=O)C1=CC=CC=C1S(N)(=O)=O UADGDKCDJALXDM-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- LJXQPZWIHJMPQQ-UHFFFAOYSA-N pyrimidin-2-amine Chemical compound NC1=NC=CC=N1 LJXQPZWIHJMPQQ-UHFFFAOYSA-N 0.000 description 1
- 150000003230 pyrimidines Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 101150035983 str1 gene Proteins 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000004546 suspension concentrate Substances 0.000 description 1
- 229910002029 synthetic silica gel Inorganic materials 0.000 description 1
- 150000007944 thiolates Chemical class 0.000 description 1
- 229930192474 thiophene Chemical class 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 1
- DTQVDTLACAAQTR-DYCDLGHISA-N trifluoroacetic acid-d1 Chemical compound [2H]OC(=O)C(F)(F)F DTQVDTLACAAQTR-DYCDLGHISA-N 0.000 description 1
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 description 1
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 1
- 238000001665 trituration Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/65—N-sulfonylisocyanates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/62—Oxygen or sulfur atoms
- C07D213/70—Sulfur atoms
- C07D213/71—Sulfur atoms to which a second hetero atom is attached
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D521/00—Heterocyclic compounds containing unspecified hetero rings
Definitions
- This invention relates to N-(5-substituted pyrimidin-2-ylaminocarbonyl)sulfonamides and their use as agricultural chemicals.
- R 3 and R 4 may independently be hydrogen, chlorine or alkyl of 1-4 carbon atoms.
- herbicides A wide variety of materials useful for killing, or inhibiting (controlling) the growth of undesired vegetation is available; such materials are commonly referred to as herbicides. The need exists, however, for still more effective herbicides that destroy or retard weeds.
- R 1 is H, Cl, F, Br, NO 2 , CH 3 , OCH 3 or CF 3 ;
- R 2 is H, C 1 -C 6 alkyl, C 3 -C 4 alkenyl, C 2 -C 3 haloalkyl, C 5 -C 6 cycloalkyl, C 4 -C 7 cycloalkylalkyl, CH 2 OCH 2 CH 2 OCH 3 , CH 2 -CH(CH 3 )OR 5 or (CH 2 ) m OR 5 where m is 1, 2 or 3;
- R a 2 is H, C 1 -C 4 alkyl, C 3 -C 4 alkenyl or OCH 3 ;
- R b 2 is H, C 1 -C 4 alkyl, C 3 -C 4 alkenyl or R a 2 and R b 2 can be taken together to form --CH 2 -- 5 , --CH 2 -- 4 or --CH 2 CH 2 -O-CH 2 CH 2 --;
- R c 2 is C 1 -C 4 alkyl or C 3 -C 4 alkenyl
- R 3 is C 1 -C 4 alkyl or OCH 3 ;
- R 4 is C 1 -C 4 alkyl
- R 5 is C 1 -C 3 alkyl
- X and Z are independently H, CH 3 , Br, Cl, OCH 3 , CH 2 CH 3 , CH 2 OCH 3 or OCH 2 CH 3 ;
- Y is F, Cl, Br, I, CH 3 , CH 2 CH 3 , CH 2 CH 2 CH 3 , (CH 2 ) 3 CH 3 , CH 2 -CH ⁇ CH 2 , OCH 3 , OCH 2 CH 3 , CN, CH 2 CH 2 Cl, CH 2 CH 2 CH 2 Cl, CH 2 CH 2 OCH 3 , OCH 2 OCH 3 , CH 2 OCH 3 , OCH 2 CH 2 OCH 3 , CH 2 CO 2 R 6 , CH 2 CH 2 CO 2 R 6 , CO 2 R 6 , ##STR10## or NO; R 6 is CH 3 or CH 2 CH 3 ;
- R 2 is C 1 -C 4 alkyl, C 3 -C 4 alkenyl, or C 2 -C 3 haloalkyl
- Y is F, Cl, Br, CH 3 , C 2 H 5 or CH 2 CH 2 Cl
- at least one of X or Z is CH 3 , OCH 3 , Et or OEt.
- the reaction is best carried out in inert aprotic solvents such as methylene chloride, acetonitrile or tetrahydrofuran at ambient temperature.
- aprotic solvents such as methylene chloride, acetonitrile or tetrahydrofuran at ambient temperature.
- the mode of addition is not critical; however, it is often convenient to add the sulfonyl isocyanate to a stirred suspension of the aminopyrimidine since the isocyanates are usually liquids or low melting solids and their addition is more easily controlled.
- the reaction is generally mildly exothermic. In some cases, the desired product is soluble in the warm reaction medium and crystallizes from it in pure form on cooling. Products soluble in the reaction mixture are isolated by evaporation of the solvent, trituration of the solid residue with solvents such as 1-chlorobutane ethyl ether or pentane and filtration.
- the intermediate sulfonyl isocyanates of Formula III can be prepared by reacting corresponding sulfonamides with phosgene in the presence of n-butyl isocyanate at reflux in a solvent such as chlorobenzene, according to the procedure of H. Ulrich and A. A. Y. Sayigh, Newer Methods of Preparative Organic Chemistry, Vol. VI p 223-241, Academic Press, New York and London, W. Foerst Ed.
- a solvent such as chlorobenzene
- DABCO 1,4-diaza[2,2,2]bicyclooctane
- novel pyridinesulfonyl isocyanates can also be prepared by the procedure of Equation 2 by substituting the appropriate 2-chloro or bromo pyridine sulfonamide for the o-alkoxycarbonyl benzenesulfonamide IV shown above.
- Certain sulfonyl chlorides are best prepared by chlorosulfonation of a substituted benzene or thiophene according to the teaching of H. T. Clarke et al. Org. Synth. Coll. Vol. 1, 2nd Ed. 1941, p. 85.
- Other benzenesulfonyl chlorides are best made by diazotization of the appropriate aniline with sodium nitrite in HCl as taught by H. L. Yale and F. Sowinski, J. Org. Chem. 25, 1824 (1960).
- the intermediate alkylaminoaluminum compounds prepared according to A. Basha, M. Lipton and S. W. Weinreb, Tetrahedron Letters 4171 (1977), are mixed with a suspension of the esters in toluene or similar inert solvent and the mixture is refluxed for one to six hours.
- the product can be isolated by evaporation of the solvent toluene, adding methylene chloride and aqueous hydrochloric acid to decompose the residual reaction mass and extracting the desired product into methylene chloride. Evaporation of the methylene chloride yields the desired product in sufficiently pure form for the purpose of this invention.
- the intermediate aluminum thiolates can be prepared according to R. P. Hatch and S. W. Weinreb, Journal of Organic Chemistry, Vol. 42, 3960 (1977).
- the reaction of the thiolate with the ester of this invention is best carried out in a neutral solvent such as toluene or xylene at reflux for one to three hours. Best results are obtained when the aluminum thiolate compound is present in excess of the stoichiometric amount required.
- the reaction can be carried out by stirring equivalent amounts of Ic with m-chloroperbenzoic acid in an inert solvent such as chloroform and stirring at 0° C. to reflux for 12-24 hours after which the insoluble m-chlorobenzoic acid produced is removed by filtration and the chloroform solution containing the desired sulfoxide is concentrated to yield the crude product.
- the product can be purified further by dissolving it in aqueous base of pH 10 and adjusting the pH to 4 to precipitate the desired compound while leaving the m-chlorobenzoic acid in solution as its sodium salt.
- Equation 7 The reaction of Equation 7 is best carried out in a solution containing the compound being hydrolyzed, 2 to 10 parts of methanol, 10-50 parts of water and 2-10 equivalents of a base such as sodium or potassium hydroxide maintaining the temperature at 15°-90° C. for 3-24 hours.
- the reaction yields the soluble alkali metal salt of the carboxylic acid, which is suitable for the purposes of this invention. Conversion of these salts to the acid form is easily carried out by addition to the reaction medium of strong mineral acids, such as hydrochloric or sulfuric acid, causing the desired carboxylic acids to precipitate from solution.
- Equation 8 is of use where the intermediate compound R 2 -Halogen contains a readily replaceable halogen as is the case for substituted or unsubstituted allylic halides, or alkoxyalkyl halides.
- Equation 8 The procedure of Equation 8 is best carried out in inert polar solvents such as tetrahydrofuran, acetonitrile or acetone by combining the appropriately substituted carboxylic acid and base such as triethylamine or 1,4-diaza[2,2,2]bicyclooctane adding the appropriate halide and heating the mixture to reflux with stirring for 1 to 16 hours.
- the reaction mixture can be evaporated to dryness and the residue triturated with water, filtered and washed with water to separate the desired product from the water soluble salt.
- Certain compounds of Formula I, where R 2 -Halogen is less reactive, are more conveniently prepared by reaction of the silver salt of the carboxylic acid and the appropriate R 2 -Halogen. The reaction is carried out in a suitable solvent such as acetonitrile between 0° and 80° for 1-6 hours and the product is isolated as described above.
- 5-substituted 2-aminopyrimidines The principal synthesis of 5-substituted 2-aminopyrimidines is carried out by reacting guanidine with suitably substituted ⁇ -dicarbonyl compounds such as ⁇ -diketones, ⁇ -aldehydoketones, malonic esters, and ⁇ -ketoesters.
- ⁇ -dicarbonyl compounds such as ⁇ -diketones, ⁇ -aldehydoketones, malonic esters, and ⁇ -ketoesters.
- Agriculturally suitable salts of compounds of Formula I are also useful herbicides and can be prepared in a number of ways known to the art.
- metal salts can be made by treating compounds of Formula I with a solution of an alkali or alkaline earth metal salt having a sufficiently basic anion (e.g. hydroxide, alkoxide, carbonate or hydride).
- Quaternary amine salts can be made by similar techniques.
- Salts of compounds of Formula I can also be prepared by exchange of one cation for another.
- Cationic exchange can be effected by direct treatment of an aqueous solution of a salt of a compound of Formula I (e.g. alkali or quaternary amine salt) with a solution containing the cation to be exchanged. This method is most effective when the desired salt containing the exchanged cation is insoluble in water and can be separated by filtration.
- a salt of a compound of Formula I e.g. alkali or quaternary amine salt
- Exchange may also be effected by passing an aqueous solution of a salt of a compound of Formula I (e.g. an alkali metal or quaternary amine salt) through a column packed with a cation exchange resin containing the cation to be exchanged.
- a salt of a compound of Formula I e.g. an alkali metal or quaternary amine salt
- a cation exchange resin containing the cation to be exchanged.
- the cation of the resin is exchanged for that of the original salt and the desired product is eluted from the column. This method is particularly useful when the desired salt is water-soluble.
- Acid addition salts useful in this invention, can be obtained by reacting a compound of Formula I with a suitable acid, e.g. p-toluenesulfonic acid, trichloroacetic acid or the like.
- a suitable acid e.g. p-toluenesulfonic acid, trichloroacetic acid or the like.
- 2-Amino-5-chloropyrimidine (1.3 g) was suspended in 20 ml of methylene chloride and to this was added with stirring 2.4 g of methyl 2-(isocyanatosulfonyl)-benzoate. After stirring for three hours at ambient temperature, the desired product, 2- ⁇ [(5-chloropyrimidin-2-yl)aminocarbonyl]aminosulfonyl ⁇ benzoic acid, methyl ester, which had precipitated as a white solid, was filtered off.
- Trimethylaluminum (6.0 ml, 2 M) is charged via syringe to 15 ml dry toluene under nitrogen atmosphere and 3.8 g N-[(5-chloro-4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide is added portionwise.
- methyl mercaptan gas
- the reaction mixture is allowed to stir at room temperature for 1 hour, and quenched with 25 ml of 10% HCl.
- the resultant white suspension is filtered to give the desired product.
- Useful formulations of the compounds of Formula I can be prepared in conventional ways. They include dusts, granules, pellets, suspensions, emulsions, wettable powders, emulsifiable concentrates and the like. Many of them can be applied directly. Sprayable formulations can be extended in suitable media and used at spray volumes of from a few liters to several hundred liters per hectare. High strength compositions are used primarily as concentrates which are to be diluted prior to ultimate use.
- the formulations broadly, contain about 0.1% to 99% by weight of active ingredient(s) and at least one of (a) about 0.1% to 20% surfactant(s) and (b) about 1% to 99.9% solid or liquid diluent(s). More specifically, they will contain these ingredients in the approximate proportions set forth in Table 2.
- compositions are well known. Solutions are prepared by simply mixing the ingredients. Fine solid compositions are made by blending, and usually grinding, as in a hammer or fluid energy mill. Suspensions are prepared by wet milling (see, for example, Littler, U.S. Pat. No. 3,060,084). Granules and pellets can be made by spraying the active material on preformed granular carriers or by agglomeration techniques. See J. E. Browning, "Agglomeration”, Chemical Engineering, Dec. 4, 1967, pp. 147ff. and “Perry's Chemical Engineer's Handbook", 4th Ed., McGraw-Hill, New York, 1963, pp. 8-59ff.
- the ingredients are blended and ground in a hammer mill to produce a high strength concentrate essentially all passing a U.S.S. No. 50 sieve (0.3 mm openings). This material may then be formulated in a variety of ways known to those skilled in the art.
- the ingredients are ground together in a sand mill until the solid particles have been reduced to under about 5 microns.
- the resulting suspension may be applied directly, but preferably after being extended with oils or emulsified in water.
- the ingredients are thoroughly blended, passed through an air mill, to produce an average particle size under 15 microns, reblended, and sifted through a U.S.S. No. 50 sieve (0.3 mm opening) before packaging.
- the ingredients are blended and coarsely ground in a hammer mill to produce particles essentially all below 100 microns in size.
- the material is then reblended, sifted through a U.S.S. No. 50 sieve (0.3 mm opening) and packaged.
- the ingredients are thoroughly blended.
- the liquid surfactant is added by spraying upon the solid ingredients in the blender. After grinding in a hammer mill to produce particles essentially all below 100 microns, the material is reblended, sifted through a U.S.S. No. 50 sieve (0.3 mm opening) and packaged.
- the ingredients are blended, coarsely hammer milled and then air milled to produce particles of active essentially all below 10 microns in diameter.
- the product is reblended before packaging.
- a slurry of wettable powder containing 50% solids is sprayed on the surface of attapulgite granules in a double-cone blender. The granules are dried and packaged.
- the ingredients are blended, hammer milled and then moistened with about 12% water.
- the mixture is extruded as cylinders about 3 mm diameter which are cut to produce pellets about 3 mm long. These may be used directly after drying, or the dried pellets may be crushed to pass a U.S.S. No. 20 sieve (0.84 mm openings).
- the granules held on a U.S.S. No. 40 sieve (0.42 mm openings) may be packaged for use and the fines recycled.
- the compounds of the present invention are effective herbicides. They have utility for broad-spectrum pre- and/or post-emergence weed control in areas where complete control of all vegetation is desired, such as around fuel storage tanks, ammunition depots, industrial storage areas, parking lots, drive-in theaters, around billboards, highway and railroad structures. Alternatively, the subject compounds are useful for selective pre- or post-emergence weed control in crops such as wheat and barley. Certain of the subject compounds control nutsedge (Cyperus spp.) and some compounds may be used for selective weed control in soybeans. The compounds of this invention also possess plant growth regulant activity.
- the rates of application for the compounds of the invention are determined by a number of factors, including their use as selective or general herbicides, the crops species involved, the types of weeds to be controlled, weather and climate, formulations selected, mode of application, amount of foliage present, etc.
- the subject compounds should be applied at levels of around 0.125 to 10 kg/ha, the lower rates being suggested for use on lighter soils and/or those having a low organic matter content, for selective weed control or for situations where only short-term persistence is required.
- Combinations of the compounds of Formula I with known herbicides provide effective control of weeds in small grain crops such as wheat and barley.
- Typical herbicides that may be used are chlorotoluron[3-(3-chloro-4-methylphenyl)-1,1-dimethylurea], MCPP [( ⁇ )-2-(4-chloro-2-methylphenoxy)propanoic acid], metoxuron [3-(3-chloro-4-methoxyphenyl)-1,1-dimethylurea], methabenzthiazuron [1-(benzothiazol-2-yl)-1,3-dimethylurea], dichlofop [(methyl-2-[4-(2,4-dichlorophenoxy)phenoxy]propanoate)], tri-allate[S-2,3-dichloroallyl di-isopropylthiocarbamate], isoproturon-[3-(4-isopropylphenyl)-1,1-
- the compounds of Formula I may also be combined with other herbicides and are particularly useful in combination with ureas, such as 3-(3,4-dichlorophenyl)-1,1-dimethylurea, 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea and 1,1-dimethyl-3-( ⁇ , ⁇ , ⁇ -trifluoro-m-tolyl) urea; the triazines such as 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine; the uracils such as 5-bromo-3-sec-butyl-6-methyluracil; N-(phosphonomethyl)glycine; 3-cyclohexyl-1-methyl-6-dimethylamino-s-triazine-2,4(1H,3H)-dione; N,N-dimethyl-2,2-diphenylacetamide; 2,4-dichlorophenoxyacetic acid (and closely
- Results from the tests are expressed in terms of plant response ratings which are composed of a number and a letter.
- the number describes the extent of the response and ranges from zero to ten with zero representing no response and ten representing 100% response.
- the letter describes the type of the response, as explained below.
- the ratings "6Y” and “6F” are exceptions to the above described rating system, and represent abscised buds or flowers and delayed flowering, respectively.
- Two plastic bulb pans were filled with fertilized and limed Fallsington silt loam soil.
- One pan was planted with corn, sorghum, Kentucky bluegrass and several grassy weeds.
- the other pan was planted with cotton, soybeans, purple nutsedge (Cyperus rotundus), and several broadleaf weeds.
- the following grassy and broadleaf weeds were planted: crabgrass (Digitaria sanguinalis), barnyardgrass (Echinochloa crusgalli), wild oats (Avena fatus), johnsongrass (Sorghum halepense), dallisgrass (Paspalum dilatatum), giant foxtail (Setaria faberii), cheatgrass (Bromus secalinus), mustard (Brassica arvensis), cocklebur (Xanthium pennsylvanicum), pigweed (Amaranthus retroflexus), morningglory (Ipomoea hederacea), cassia (Cassia tora), teaweed (Sida spinosa), velvetleaf (Abutilon theophrasti), and jimsonweed (Datura stramonium).
- a 12.5 cm diameter plastic pot was also filled with prepared soil and planted with rice and wheat. Another 12.5 cm pot was planted with sugarbeets. The above four containers were treated pre
- Purple nutsedge (Cyperus rotundus) tubers were planted about 2 cm deep in Fallsington silt loam soil contained in 10 cm diameter plastic pots. Five tubers were planted in each pot.
- Compounds of this invention were dissolved in an nonphytotoxic diluent and sprayed at 560 l/ha in four methods of application: soil surface, tuber/soil, soil incorporated, and post-emergence.
- the soil surface spray consisted of spraying the compound on the surface of the firmed covering soil.
- the tuber/soil spray consisted of spraying the compound on exposed tubers and subtending soil before adding the untreated covering soil.
- Soil incorporated treatment consisted in mixing the compound with the covering soil before using it to cover the tubers.
- the post-emergence treatment was sprayed on nutsedge foliage and the surrounding soil surface when nutsedge had emerged and grown to a height of about 12 cm. Pots receiving the post-emergence treatments were placed directly in the greenhouse. Pots receiving the other treatments were misted with about 0.3 cm water before being transferred to the greenhouse. Response ratings assessed after four weeks are recorded in Table D based on the same rating system as described in procedure A.
- Two ten-inch in diameter plastic pans lined with polyethylene liners were filled with prepared Fallsington silt loam silt.
- One pan was planted with seeds of wheat (Triticum aestivum), barley (Hordeum vulgare), wild oats (Avena fatua), downy brome (Bromus tectorum), cheatgrass (Bromus secalinus), blackgrass (Alopecurus myosuroides), annual bluegrass (Poa annua), green foxtail (Setaria viridis), quackgrass (Agropyron repens), Italian ryegrass (Lolium multiflorum) and ripgut brome (Bromus rigidus).
- the other pan was planted with seeds of Russian thistle (Salsola Kali), tansy mustard (Descurainia pinnata), smartweed (Polygonum pennsylvanicum), jimhill mustard (Sisymbrium altissimum), Kochia (Kochia scoparia), shepherd's purse (Capsella bursa-pastoris), false chamomile (Matricaria inodora), black nightshade (Solanum nigrum), yellow rocket (Barbarea vulgaris), wild mustard (Brassica kaber) and wild buckwheat (Polygonum convolvulus).
- Russian thistle Salsola Kali
- tansy mustard Descurainia pinnata
- smartweed Polygonum pennsylvanicum
- jimhill mustard Sisymbrium altissimum
- Kochia Kochia scoparia
- shepherd's purse Capsella bursa-pastoris
- the compounds applied were diluted with a nonphytotoxic solvent and sprayed over-the-top of the pans.
- An untreated control and a solvent-alone were included for comparison. All treatments were maintained in the greenhouse for 20 days at which time the treatments were compared to the controls and the effects visually rated utilizing the rating system described previously for Test A. The recorded data are presented in Table E. It may be seen that several of the test compounds provide control of a range of weed species without causing injury to wheat or barley.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/130,343 US4342587A (en) | 1979-07-20 | 1980-03-14 | Herbicidal pyridinsulfonamides |
DK251680A DK251680A (da) | 1979-07-20 | 1980-06-11 | Sulfonamider og deres anvendelse i herbicider |
CA000356205A CA1143732A (en) | 1979-07-20 | 1980-07-15 | Herbicidal sulfonamides |
BR8004379A BR8004379A (pt) | 1979-07-20 | 1980-07-15 | Composto herbicida,composicao e processo para controle de vegetacao indesejavel |
GB8023621A GB2055098B (en) | 1979-07-20 | 1980-07-18 | Herbicidal sulphonamides |
EP80302432A EP0023140B1 (en) | 1979-07-20 | 1980-07-18 | Herbicidal sulfonamides, preparation and use thereof, and compositions containing them |
TR20932A TR20932A (tr) | 1979-07-20 | 1980-07-18 | Herbisid sulfonamidler |
PT71579A PT71579B (en) | 1979-07-20 | 1980-07-18 | Process for the preparation of herbicidal sulfonamides and herbicide compositions thereof |
IL60628A IL60628A0 (en) | 1979-07-20 | 1980-07-18 | Pyrimidinylurea derivatives and their use as herbicides |
DE8080302432T DE3069549D1 (en) | 1979-07-20 | 1980-07-18 | Herbicidal sulfonamides, preparation and use thereof, and compositions containing them |
ES493525A ES8106301A1 (es) | 1979-07-20 | 1980-07-18 | Un procedimiento para la preparacion de sulfonamidas. |
AU60602/80A AU531642B2 (en) | 1979-07-20 | 1980-07-18 | Herbicidal sulphonamides |
NZ194384A NZ194384A (en) | 1979-07-20 | 1980-07-18 | N-(5-substituted-pyrimidin-2-yl amino carbonyl) sulphonamides herbicides |
GR62500A GR69308B (tr) | 1979-07-20 | 1980-07-19 | |
US06/370,926 US4424073A (en) | 1980-03-14 | 1982-04-22 | Herbicidal sulfonamides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5915279A | 1979-07-20 | 1979-07-20 | |
US06/130,343 US4342587A (en) | 1979-07-20 | 1980-03-14 | Herbicidal pyridinsulfonamides |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US5915279A Continuation-In-Part | 1979-07-20 | 1979-07-20 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/370,926 Division US4424073A (en) | 1980-03-14 | 1982-04-22 | Herbicidal sulfonamides |
Publications (1)
Publication Number | Publication Date |
---|---|
US4342587A true US4342587A (en) | 1982-08-03 |
Family
ID=26738412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/130,343 Expired - Lifetime US4342587A (en) | 1979-07-20 | 1980-03-14 | Herbicidal pyridinsulfonamides |
Country Status (14)
Country | Link |
---|---|
US (1) | US4342587A (tr) |
EP (1) | EP0023140B1 (tr) |
AU (1) | AU531642B2 (tr) |
BR (1) | BR8004379A (tr) |
CA (1) | CA1143732A (tr) |
DE (1) | DE3069549D1 (tr) |
DK (1) | DK251680A (tr) |
ES (1) | ES8106301A1 (tr) |
GB (1) | GB2055098B (tr) |
GR (1) | GR69308B (tr) |
IL (1) | IL60628A0 (tr) |
NZ (1) | NZ194384A (tr) |
PT (1) | PT71579B (tr) |
TR (1) | TR20932A (tr) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4424073A (en) | 1980-03-14 | 1984-01-03 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
US4425153A (en) | 1980-07-11 | 1984-01-10 | E. I. Du Pont De Nemours & Co. | Herbicidal sulfonamides |
US4461640A (en) * | 1981-12-07 | 1984-07-24 | E. I. Du Pont De Nemours And Company | Herbicidal alkenyl sulfonamides |
US4475944A (en) * | 1982-06-09 | 1984-10-09 | E. I. Du Pont De Nemours And Company | Herbicidal sulfamates |
US4510325A (en) * | 1980-07-17 | 1985-04-09 | Ciba-Geigy Corporation | Phenyl sulfonamides |
US4639264A (en) * | 1983-08-26 | 1987-01-27 | Ciga-Geigy Corporation | Herbicidal N-arylsulfonyl-N'-(4-mercaptomethylpyrimdinyl)-ureas |
US4740229A (en) * | 1985-06-07 | 1988-04-26 | E. I. Du Pont De Nemours And Company | Cyanoheterocyclic sulfonylureas |
US4744814A (en) * | 1984-12-06 | 1988-05-17 | Ishihara Sangyo Kaisha | N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3-trifluoromethylpyridine-2-sulfonamide or salts thereof, herbicidal composition containing the same |
EP0271208A1 (en) | 1986-11-12 | 1988-06-15 | E.I. Du Pont De Nemours And Company | Herbicidal pyridine N-oxide sulfonylureas |
US4761373A (en) * | 1984-03-06 | 1988-08-02 | Molecular Genetics, Inc. | Herbicide resistance in plants |
US4838926A (en) * | 1986-12-18 | 1989-06-13 | E. I. Du Pont De Nemours And Company | Herbicidal pyridine sulfonamides |
US4897108A (en) * | 1984-06-05 | 1990-01-30 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
US4900353A (en) * | 1986-11-12 | 1990-02-13 | E. I. Du Pont De Nemours And Company | Herbicidal pyridine N-oxide sulfonylureas |
US4948419A (en) * | 1986-12-18 | 1990-08-14 | E. I. Du Pont De Nemours And Company | Herbicidal pyridine sulfonamides |
US5304732A (en) * | 1984-03-06 | 1994-04-19 | Mgi Pharma, Inc. | Herbicide resistance in plants |
US6211439B1 (en) | 1984-08-10 | 2001-04-03 | Mgi Pharma, Inc | Herbicide resistance in plants |
CN100358873C (zh) * | 2004-05-11 | 2008-01-02 | 南开大学 | 磺酰脲类化合物及其制备方法和用途 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK468979A (da) * | 1978-12-04 | 1980-06-05 | Du Pont | Agrikulturelle pyridinsulfonamider |
AU543161B2 (en) * | 1980-03-07 | 1985-04-04 | E.I. Du Pont De Nemours And Company | Pyrimidine or s.triazine derivatives |
US4394153A (en) * | 1980-07-11 | 1983-07-19 | E. I. Du Pont De Nemours And Company | Herbicidal aryl esters of N-[(heterocyclic)-aminocarbonyl]sulfamic acid |
AU544382B2 (en) * | 1980-07-11 | 1985-05-23 | E.I. Du Pont De Nemours And Company | N-3(n-heterocyclic)-n:-phenyl sulphonyl(thio) ureas |
ZA814658B (en) * | 1980-07-11 | 1983-02-23 | Du Pont | Herbicidal sulfonamides |
US4378991A (en) * | 1980-07-11 | 1983-04-05 | E. I. Du Pont De Nemours And Company | Herbicidal o-aryl or alkarylsulfonylureas |
US4371391A (en) * | 1980-09-15 | 1983-02-01 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
US4545811A (en) * | 1981-08-06 | 1985-10-08 | Ciba-Geigy Corporation | N-Phenylsulfonyl-N'-triazinyl-ureas |
US4491467A (en) * | 1981-08-24 | 1985-01-01 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
CA1221698A (en) * | 1981-12-07 | 1987-05-12 | Rafael Shapiro | N-arylsulfonyl-n'-pyrimidinyl and triazinylureas |
EP0091593A1 (de) * | 1982-04-10 | 1983-10-19 | CELAMERCK GmbH & Co. KG | N-Pteridinylharnstoffe, ihre Herstellung und Verwendung |
GR79414B (tr) * | 1982-10-29 | 1984-10-22 | Du Pont | |
AU571869B2 (en) * | 1983-05-09 | 1988-04-28 | E.I. Du Pont De Nemours And Company | Pyridyl- and pyrimidyl- sulphonamides |
AU4789685A (en) * | 1984-09-28 | 1986-04-10 | E.I. Du Pont De Nemours And Company | Heterocyclic sulphonamide derivatives |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214890A (en) * | 1978-09-27 | 1980-07-29 | E. I. Du Pont De Nemours And Company | Herbicidal pyrimidine and triazine sulfonamides |
US4221585A (en) * | 1978-08-04 | 1980-09-09 | E. I. Du Pont De Nemours And Company | N-[(2,6-Dimethoxypyrimidin-4-yl)]aminocarbonyl benzene sulfonamides and their herbicidal compositions and methods of use |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4257802A (en) * | 1977-10-06 | 1981-03-24 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
DK401978A (da) * | 1977-10-06 | 1979-04-07 | Du Pont | Herbicide sulfonamider |
-
1980
- 1980-03-14 US US06/130,343 patent/US4342587A/en not_active Expired - Lifetime
- 1980-06-11 DK DK251680A patent/DK251680A/da not_active Application Discontinuation
- 1980-07-15 CA CA000356205A patent/CA1143732A/en not_active Expired
- 1980-07-15 BR BR8004379A patent/BR8004379A/pt unknown
- 1980-07-18 DE DE8080302432T patent/DE3069549D1/de not_active Expired
- 1980-07-18 AU AU60602/80A patent/AU531642B2/en not_active Ceased
- 1980-07-18 IL IL60628A patent/IL60628A0/xx unknown
- 1980-07-18 GB GB8023621A patent/GB2055098B/en not_active Expired
- 1980-07-18 ES ES493525A patent/ES8106301A1/es not_active Expired
- 1980-07-18 NZ NZ194384A patent/NZ194384A/xx unknown
- 1980-07-18 EP EP80302432A patent/EP0023140B1/en not_active Expired
- 1980-07-18 PT PT71579A patent/PT71579B/pt unknown
- 1980-07-18 TR TR20932A patent/TR20932A/tr unknown
- 1980-07-19 GR GR62500A patent/GR69308B/el unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4221585A (en) * | 1978-08-04 | 1980-09-09 | E. I. Du Pont De Nemours And Company | N-[(2,6-Dimethoxypyrimidin-4-yl)]aminocarbonyl benzene sulfonamides and their herbicidal compositions and methods of use |
US4214890A (en) * | 1978-09-27 | 1980-07-29 | E. I. Du Pont De Nemours And Company | Herbicidal pyrimidine and triazine sulfonamides |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4424073A (en) | 1980-03-14 | 1984-01-03 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
US4425153A (en) | 1980-07-11 | 1984-01-10 | E. I. Du Pont De Nemours & Co. | Herbicidal sulfonamides |
US4510325A (en) * | 1980-07-17 | 1985-04-09 | Ciba-Geigy Corporation | Phenyl sulfonamides |
US4461640A (en) * | 1981-12-07 | 1984-07-24 | E. I. Du Pont De Nemours And Company | Herbicidal alkenyl sulfonamides |
US4475944A (en) * | 1982-06-09 | 1984-10-09 | E. I. Du Pont De Nemours And Company | Herbicidal sulfamates |
US4639264A (en) * | 1983-08-26 | 1987-01-27 | Ciga-Geigy Corporation | Herbicidal N-arylsulfonyl-N'-(4-mercaptomethylpyrimdinyl)-ureas |
US5304732A (en) * | 1984-03-06 | 1994-04-19 | Mgi Pharma, Inc. | Herbicide resistance in plants |
US6222100B1 (en) | 1984-03-06 | 2001-04-24 | Mgi Pharma, Inc. | Herbicide resistance in plants |
US4761373A (en) * | 1984-03-06 | 1988-08-02 | Molecular Genetics, Inc. | Herbicide resistance in plants |
US6211438B1 (en) | 1984-03-06 | 2001-04-03 | Mgi Pharma, Inc. | Herbicide resistance in plants |
US5718079A (en) * | 1984-03-06 | 1998-02-17 | Mgi Pharma, Inc. | Herbicide resistance in plants |
US4897108A (en) * | 1984-06-05 | 1990-01-30 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
US6211439B1 (en) | 1984-08-10 | 2001-04-03 | Mgi Pharma, Inc | Herbicide resistance in plants |
US4744814A (en) * | 1984-12-06 | 1988-05-17 | Ishihara Sangyo Kaisha | N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3-trifluoromethylpyridine-2-sulfonamide or salts thereof, herbicidal composition containing the same |
US4740229A (en) * | 1985-06-07 | 1988-04-26 | E. I. Du Pont De Nemours And Company | Cyanoheterocyclic sulfonylureas |
US4789465A (en) * | 1986-11-12 | 1988-12-06 | E. I. Du Pont De Nemours And Company | Herbicidal pyridine N-oxide sulfonylureas |
US4900353A (en) * | 1986-11-12 | 1990-02-13 | E. I. Du Pont De Nemours And Company | Herbicidal pyridine N-oxide sulfonylureas |
EP0271208A1 (en) | 1986-11-12 | 1988-06-15 | E.I. Du Pont De Nemours And Company | Herbicidal pyridine N-oxide sulfonylureas |
US4948419A (en) * | 1986-12-18 | 1990-08-14 | E. I. Du Pont De Nemours And Company | Herbicidal pyridine sulfonamides |
US4838926A (en) * | 1986-12-18 | 1989-06-13 | E. I. Du Pont De Nemours And Company | Herbicidal pyridine sulfonamides |
CN100358873C (zh) * | 2004-05-11 | 2008-01-02 | 南开大学 | 磺酰脲类化合物及其制备方法和用途 |
Also Published As
Publication number | Publication date |
---|---|
EP0023140B1 (en) | 1984-10-31 |
PT71579B (en) | 1982-02-19 |
EP0023140A3 (en) | 1981-04-22 |
GB2055098A (en) | 1981-02-25 |
GB2055098B (en) | 1983-07-06 |
IL60628A0 (en) | 1980-09-16 |
EP0023140A2 (en) | 1981-01-28 |
PT71579A (en) | 1980-08-01 |
ES493525A0 (es) | 1981-06-16 |
CA1143732A (en) | 1983-03-29 |
TR20932A (tr) | 1983-01-19 |
DK251680A (da) | 1981-01-21 |
AU6060280A (en) | 1981-01-22 |
NZ194384A (en) | 1983-06-17 |
AU531642B2 (en) | 1983-09-01 |
ES8106301A1 (es) | 1981-06-16 |
GR69308B (tr) | 1982-05-14 |
DE3069549D1 (en) | 1984-12-06 |
BR8004379A (pt) | 1981-01-27 |
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Owner name: E.I DU PONT DE NEMOURS AND CMPANY, WILMINGTON, DE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LEVITT, GEORGE;REEL/FRAME:003979/0661 Effective date: 19800312 |
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